Run results for: Intl.NumberFormat vs string

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

toLocalString

309.7M/s

Intl.NumberFormat

73K/s

View exact numbers

Test name	Executions per second
✓ toLocalString	309,728,576 Ops/sec
Intl.NumberFormat	73,016 Ops/sec

Script Preparation code:

const priceCurrency = "CZK"
const price = "121.0"

Tests:

Intl.NumberFormat
return new Intl.NumberFormat('cs-CZ', { style: 'currency', currency: priceCurrency , minimumFractionDigits: 0 }).format(Number(price));
toLocalString
return `${priceCurrency} ${price}`;